NO121657B - - Google Patents
Download PDFInfo
- Publication number
- NO121657B NO121657B NO16466066A NO16466066A NO121657B NO 121657 B NO121657 B NO 121657B NO 16466066 A NO16466066 A NO 16466066A NO 16466066 A NO16466066 A NO 16466066A NO 121657 B NO121657 B NO 121657B
- Authority
- NO
- Norway
- Prior art keywords
- theobromine
- stated
- oxypropyl
- water
- stage
- Prior art date
Links
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 18
- 229960004559 theobromine Drugs 0.000 claims description 13
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 claims description 12
- 238000000034 method Methods 0.000 claims description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 9
- 238000001816 cooling Methods 0.000 claims description 7
- BTFHIKZOEZREBX-UHFFFAOYSA-N 3,7-dimethyl-1-prop-2-enylpurine-2,6-dione Chemical compound CN1C(=O)N(CC=C)C(=O)C2=C1N=CN2C BTFHIKZOEZREBX-UHFFFAOYSA-N 0.000 claims description 6
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 6
- 235000011121 sodium hydroxide Nutrition 0.000 claims description 6
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 claims description 4
- WTEOIRVLGSZEPR-UHFFFAOYSA-N boron trifluoride Chemical compound FB(F)F WTEOIRVLGSZEPR-UHFFFAOYSA-N 0.000 claims description 4
- 239000003054 catalyst Substances 0.000 claims description 4
- 238000010438 heat treatment Methods 0.000 claims description 4
- 239000011541 reaction mixture Substances 0.000 claims description 4
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical class [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 claims description 3
- 238000010992 reflux Methods 0.000 claims description 3
- 229910015900 BF3 Inorganic materials 0.000 claims description 2
- 229910000147 aluminium phosphate Inorganic materials 0.000 claims description 2
- 239000000203 mixture Substances 0.000 claims description 2
- 238000009835 boiling Methods 0.000 claims 1
- 238000002844 melting Methods 0.000 description 5
- 230000008018 melting Effects 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 238000003756 stirring Methods 0.000 description 3
- NHAXKHSVJBVINX-UHFFFAOYSA-N 3,7-dimethylpurine-2,6-dione;sodium Chemical compound [Na].CN1C(=O)NC(=O)C2=C1N=CN2C NHAXKHSVJBVINX-UHFFFAOYSA-N 0.000 description 2
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 2
- 239000000155 melt Substances 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- YAPQBXQYLJRXSA-UHFFFAOYSA-N theobromine Chemical compound CN1C(=O)NC(=O)C2=C1N=CN2C YAPQBXQYLJRXSA-UHFFFAOYSA-N 0.000 description 2
- RZWHKKIXMPLQEM-UHFFFAOYSA-N 1-chloropropan-1-ol Chemical compound CCC(O)Cl RZWHKKIXMPLQEM-UHFFFAOYSA-N 0.000 description 1
- 125000003903 2-propenyl group Chemical group [H]C([*])([H])C([H])=C([H])[H] 0.000 description 1
- CEUABESLRGJGPU-UHFFFAOYSA-N 3,7-dimethylpurine-2,6-dione silver Chemical compound [Ag].N1C(=O)N(C)C=2N=CN(C)C2C1=O CEUABESLRGJGPU-UHFFFAOYSA-N 0.000 description 1
- 206010052895 Coronary artery insufficiency Diseases 0.000 description 1
- 206010019280 Heart failures Diseases 0.000 description 1
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 description 1
- 208000004880 Polyuria Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000012043 crude product Substances 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 208000035475 disorder Diseases 0.000 description 1
- 230000001882 diuretic effect Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 208000031169 hemorrhagic disease Diseases 0.000 description 1
- 239000012452 mother liquor Substances 0.000 description 1
- 208000010125 myocardial infarction Diseases 0.000 description 1
- 230000000144 pharmacologic effect Effects 0.000 description 1
- 235000021395 porridge Nutrition 0.000 description 1
- 238000001953 recrystallisation Methods 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 230000033764 rhythmic process Effects 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 239000001488 sodium phosphate Substances 0.000 description 1
- 229910000162 sodium phosphate Inorganic materials 0.000 description 1
- 239000012265 solid product Substances 0.000 description 1
- 239000012258 stirred mixture Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 238000002560 therapeutic procedure Methods 0.000 description 1
- RYFMWSXOAZQYPI-UHFFFAOYSA-K trisodium phosphate Chemical compound [Na+].[Na+].[Na+].[O-]P([O-])([O-])=O RYFMWSXOAZQYPI-UHFFFAOYSA-K 0.000 description 1
- 239000008096 xylene Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21F—WORKING OR PROCESSING OF METAL WIRE
- B21F33/00—Tools or devices specially designed for handling or processing wire fabrics or the like
- B21F33/002—Coiling or packing wire network
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C47/00—Winding-up, coiling or winding-off metal wire, metal band or other flexible metal material characterised by features relevant to metal processing only
- B21C47/02—Winding-up or coiling
- B21C47/04—Winding-up or coiling on or in reels or drums, without using a moving guide
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Braiding, Manufacturing Of Bobbin-Net Or Lace, And Manufacturing Of Nets By Knotting (AREA)
- Basic Packing Technique (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Description
Framgangsmåte for framstilling av l-(/9-oksypropyl)-teobromin. Process for the production of l-(/9-oxypropyl)-theobromine.
l-(p-oksypropyl)-teobrominet av for-melen: The l-(p-oxypropyl)-theobromine of the formula:
kan framstilles etter C. A. Rojahn og H. Fegeler, Arch. Pharm. 268,570 (1930) fra teobromin-natrium eller teobromin-sølv og p-klorpeopanol. Utbyttene andrar til 1 til 2 pst. av det teoretiske. Når det arbeides i xylolsuspensjon under trykk, oppnås mak-simalt 5 pst. av det teoretiske utbytte. Smeltepunktet angis til 129°. På grunn av de dårlige utbytter er denne framgangsmåte imidlertid ikke anvendbar for en tek-nisk utnyttelse. can be produced after C. A. Rojahn and H. Fegeler, Arch. Pharm. 268,570 (1930) from theobromine sodium or theobromine silver and p-chloropeopanol. The yields vary to 1 to 2 percent of the theoretical. When working in xylene suspension under pressure, a maximum of 5 per cent of the theoretical yield is achieved. The melting point is stated at 129°. However, due to the poor yields, this procedure is not applicable for technical exploitation.
Det viste seg at l-((3-oksypropyl)-teobromin kan fås med betydelig forbedrete utbytter når man til det lett tilgjengelige 1-allyl-teobromin under anvendelse av vanntilleiringskatalysatorer, som fosforsyre, bortrifluorid, fortrinnsvis svovelsyre, tilleirer vann. Addisjonen av H20 til dob-beltbindingen i allylgruppen inntrer over-raskende godt i den ønskete retning. Det dannete (5-oksypropyl-teobromin kan iso-leres med et utbytte av 90 til 95 pst. av teorien. Det erholdte produkt smelter ved 138—142° C, altså 13° C høyere enn den substans som er beskrevet av Rojahn og Fegeler. På grunn av egne forsøk for framstilling av |3-oksypropyl-teobrominet fra teo-brominnatrium og klorpropanol må det an-tas at den lavere smeltende, kjente forbin-delse inneholder ikke omsatt teobromin, hvorved smeltepunktsnedsettelsen fram-bringes. Ved ytterligere omkrystallisering kan nemlig smeltepunktet økes til den verdi som er funnet ved substansen fram-stilt ved framgangsmåten ifølge oppfin-nelsen. It was found that 1-((3-oxypropyl)-theobromine can be obtained with significantly improved yields when water is added to the readily available 1-allyl-theobromine using water deposition catalysts, such as phosphoric acid, boron trifluoride, preferably sulfuric acid. The addition of H20 until the double bond in the allyl group enters surprisingly well in the desired direction. The formed (5-oxypropyl-theobromine can be isolated with a yield of 90 to 95 per cent of theory. The product obtained melts at 138-142° C , i.e. 13° C higher than the substance described by Rojahn and Fegeler. Due to own experiments for the production of |3-oxypropyl-theobromine from sodium theo-bromine and chloropropanol, it must be assumed that the lower-melting, known compound delse does not contain reacted theobromine, whereby the lowering of the melting point is produced. Namely, by further recrystallization, the melting point can be increased to the value found for the substance produced by the method according to the invention.
For oppnåelse av gode utbytter og et produkt med høy renhet er det meget vik-tig nøyaktig og trinnvis å overholde temperaturen ved reaksjonen. I et første trinn er det hensiktsmessig å kjøle den av allyl-teobromin og katalysator bestående blanding til temperaturen under 30°C. I det annet trinn oppnås gode utbytter når den erholdte oppløsning oppvarmes til 50—80° C. Også denne oppvarming kan hensiktsmessig gjennomføres trinnvis, idet man først oppvarmer til 50—65° C og derpå øker temperaturen til 75—80° C. In order to achieve good yields and a product with high purity, it is very important to precisely and step by step observe the temperature during the reaction. In a first step, it is appropriate to cool the mixture consisting of allyl-theobromine and catalyst to a temperature below 30°C. In the second step, good yields are obtained when the resulting solution is heated to 50-80° C. This heating can also be suitably carried out in stages, first heating to 50-65° C and then increasing the temperature to 75-80° C.
Etter oppnåelse av den høyeste temperatur avkjøles reaksjonsblandingen, den fortynnes i den mangedobbelte mengde vann og kokes under anvendelse av tilbake-løpskjøler. Etter fornyet avkjøling nøytra-liseres med natronlut, hensiktsmessig konsentrert natronlut, hvorunder l-(|3-oksypropyl)-teobrominet utskilles som en olje, som stivner ved avkjøling. Det faste produkt skilles fra den mettete natriumsulfatopp-løsning, eller natriumfosfatoppløsning, tør-kes og omkrystalliseres fra isopropanol. After reaching the highest temperature, the reaction mixture is cooled, diluted in the multiplied amount of water and boiled using a reflux condenser. After cooling again, it is neutralized with caustic soda, suitably concentrated caustic soda, during which the 1-(|3-oxypropyl)-theobromine is separated as an oil, which solidifies on cooling. The solid product is separated from the saturated sodium sulfate solution, or sodium phosphate solution, dried and recrystallized from isopropanol.
l-(|3-oksypropyl)-teobromin er lett oppløselig i vann og oppviser gunstige far-makologiske virkninger. Således er det terapeutisk anvendelig ved hjerte- og ved koronarinsuffisiens, hjerteinfarkt, rytme-forstyrrelser og ved terminal gjennom-blødningsforstyrrelser. Dessuten gjøres der i terapien også bruk av den diuretiske virkning av denne substans. 1-(|3-oxypropyl)-theobromine is easily soluble in water and exhibits beneficial pharmacological effects. Thus, it is therapeutically applicable for heart and coronary insufficiency, heart attack, rhythm disorders and terminal bleeding disorders. In addition, the diuretic effect of this substance is also used in the therapy.
Eksempel 1: 30 g allyl-teobromin bringes i oppløs-ning under omrøring med 30 cm» konsentrert svovelsyre. Herunder inntrer oppvarming, og man får en lysebrun grøt som avkjøles til romtemperatur. I løpet av 1 time opphetes derpå under videre omrøring til 70—80° C. Reaksjonsblandingen innrø-res i 300 cm» vann, og den erholdte oppløs-ning kokes i 2 timer ved tilbakeløpskjøler. Etter avkjølingen nøytraliserer man med natronlut, filtrerer fra en liten mengde av brune harpikser og inndamper i vakuum til tørrhet. Residuet utkokes med isopropanol, og den varme filtrerte isopropa-noloppløsning inndampes til et lite volum. Den på denne måte erholdte krystallgrøt avsuger man etter avkjøling og vasker med litt aceton. Man får 26 g l-(|3-oksypropyl)-teobromin med et smeltepunkt av 138— 139° C. Example 1: 30 g of allyl theobromine is brought into solution while stirring with 30 cm" of concentrated sulfuric acid. During this, heating occurs, and you get a light brown porridge that cools to room temperature. In the course of 1 hour, it is then heated with further stirring to 70-80° C. The reaction mixture is stirred into 300 cm3 of water, and the resulting solution is boiled for 2 hours in a reflux condenser. After cooling, neutralize with caustic soda, filter from a small amount of brown resins and evaporate in vacuo to dryness. The residue is boiled off with isopropanol, and the hot filtered isopropanol solution is evaporated to a small volume. The crystal slurry obtained in this way is suctioned off after cooling and washed with a little acetone. 26 g of 1-(|3-oxypropyl)-theobromine with a melting point of 138-139° C are obtained.
Eksempel 2: 4 kg allylteobromin innføres under omrøring i 4 liter avkjølt konsentrert svovelsyre, hvorunder man lar temperaturen ikke stige over 30° C. I tilslutning hertil oppheter man den godt omrørte blanding i vannbad og holder temperaturen i ca. 30 minutter på 50—65° C. I løpet av ytterligere 15 minutter opphetes til 75—80° C, og derpå avkjøles. Den omtrent 60° C varme oppløsning heller man nå i 18 liter vann og koker i 2—3 timer. Etter avkjø-ling til romtemperatur nøytraliseres med konsentrert natronlut, hvorunder oksypropyl-teobrominet utskilles som en olje. Det ved avkjøling stivnete råprodukt skilles fra den mettete natriumsulfatoppløsning, tør-kes og omkrystalliseres fra isopropanol. Man får på denne måte 3,75 kg l-((3-oksypropyl)-teobromin. Etter opparbeidelsen av isopropanol-moderluten andrar utbyttet til 94-95 pst. Substansen smelter ved 140-142°. Example 2: 4 kg of allyl theobromine is introduced with stirring into 4 liters of cooled concentrated sulfuric acid, during which the temperature is not allowed to rise above 30° C. In connection with this, the well-stirred mixture is heated in a water bath and the temperature is maintained for approx. 30 minutes at 50-65° C. During a further 15 minutes, heat to 75-80° C, and then cool. The approximately 60°C warm solution is now poured into 18 liters of water and boiled for 2-3 hours. After cooling to room temperature, it is neutralized with concentrated caustic soda, during which the oxypropyl-theobromine is separated as an oil. The crude product solidified by cooling is separated from the saturated sodium sulfate solution, dried and recrystallized from isopropanol. 3.75 kg of 1-((3-oxypropyl)-theobromine is obtained in this way. After working up the isopropanol mother liquor, the yield changes to 94-95 per cent. The substance melts at 140-142°.
Claims (6)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB3945265A GB1109582A (en) | 1965-09-15 | 1965-09-15 | A machine for winding up chain link fencing |
Publications (1)
Publication Number | Publication Date |
---|---|
NO121657B true NO121657B (en) | 1971-03-29 |
Family
ID=10409622
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
NO16466066A NO121657B (en) | 1965-09-15 | 1966-09-09 |
Country Status (8)
Country | Link |
---|---|
BE (1) | BE686837A (en) |
CH (1) | CH436193A (en) |
DE (1) | DE1552156C3 (en) |
DK (1) | DK113191B (en) |
FR (1) | FR1492676A (en) |
GB (1) | GB1109582A (en) |
LU (1) | LU51931A1 (en) |
NO (1) | NO121657B (en) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2650590C2 (en) * | 1976-11-04 | 1985-06-20 | ARBED S.A., Luxemburg/Luxembourg | Method and device for producing a braided roll |
DE2940053C2 (en) * | 1979-10-03 | 1984-03-22 | Rösler Draht AG, 4056 Schwalmtal | Process for the production of a compact roll from a wire mesh web |
FR2471938A1 (en) * | 1979-12-19 | 1981-06-26 | Chiers Chatillon Gorcy Trefil | WINDING DEVICE FOR SINGLE-SIDED GRIDING |
DE3136207C1 (en) * | 1981-09-12 | 1983-01-13 | Wafios Maschinenfabrik Wagner, Ficker & Schmid (GmbH & Co KG), 7410 Reutlingen | Method and device for producing rolls of wire mesh |
IT1146372B (en) * | 1981-10-07 | 1986-11-12 | Trafileria Zincheria Cavatorta | PROCESS AND MACHINE FOR ROLLING METALLIC NETWORK IN COMPACT ROLLS |
FR2518435A1 (en) * | 1981-12-22 | 1983-06-24 | Gantois | Continuously fed plant producing rolls of chain link wire netting - improves compaction by cranking and twisting loop in end loop of wire joint |
DE4004187C2 (en) * | 1990-02-12 | 1999-03-11 | Stop Choc Schwingungstechnik Gmbh & Co Kg | Shock absorber main body, and method and device for producing the same |
-
1965
- 1965-09-15 GB GB3945265A patent/GB1109582A/en not_active Expired
-
1966
- 1966-09-07 DE DE19661552156 patent/DE1552156C3/en not_active Expired
- 1966-09-09 NO NO16466066A patent/NO121657B/no unknown
- 1966-09-12 LU LU51931D patent/LU51931A1/xx unknown
- 1966-09-14 CH CH1331366A patent/CH436193A/en unknown
- 1966-09-14 BE BE686837D patent/BE686837A/xx not_active IP Right Cessation
- 1966-09-14 DK DK474266A patent/DK113191B/en unknown
- 1966-09-15 FR FR76438A patent/FR1492676A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
DK113191B (en) | 1969-02-24 |
DE1552156B2 (en) | 1974-02-07 |
LU51931A1 (en) | 1966-12-22 |
CH436193A (en) | 1967-05-31 |
BE686837A (en) | 1967-02-15 |
DE1552156A1 (en) | 1970-01-29 |
DE1552156C3 (en) | 1974-09-19 |
GB1109582A (en) | 1968-04-10 |
FR1492676A (en) | 1967-08-18 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
NO121657B (en) | ||
US3577427A (en) | Bromination of 2,1,3,-benzothiadiazoles and benzofurazans | |
US4258210A (en) | Process for manufacturing sodium pantothenate | |
EP0343597B1 (en) | Preparation of tris (2-cyanoethyl) amine | |
US2806034A (en) | 3-(heterocyclic-substituted alkyl) thianaphthenes and salts thereof | |
US4025520A (en) | Dehydrohalogenation of a 7-halodihydrocodeinone dialkyl ketal | |
US4062889A (en) | Preparation of sulfonylureas | |
US2127446A (en) | Process fob the manufactobe of | |
US3152129A (en) | Triethylene diamine fumarate and its uses in recovery of diazabicyclooctane | |
US2224836A (en) | Z-aminopyrimidines | |
US2413507A (en) | Process for the manufacture of dibenzanthronyls | |
US1929847A (en) | Production of condensation products of 1.5-dihalogen anthraquinones | |
US3282959A (en) | 7-chloro-alpha-methyltryptamine derivatives | |
AT201595B (en) | Process for the preparation of 4-sulfanilamido-2,6-dimethoxypyrimidine via the new 4-amino-2,6-dimethoxypyrimidine | |
JPH0573738B2 (en) | ||
SU149357A1 (en) | Method for preparing 3-sulfanilamido-6-alkyl- or arylalkyl-substituted pyridazines | |
SU388554A1 (en) | Method for preparing nicotinoyl-β-methionine | |
US2387212A (en) | Preparation of 2-amino-thiazole | |
EP0479960B1 (en) | Method for the synthesis of trisodium phosphonoformate hexahydrate | |
US2165445A (en) | Preparation of phenyl methyl pyrazyl phenyl methyl pyrazolone | |
US3654292A (en) | Manufacture of 3 5-dichloro-2 6-difluoro - 4 - hydroxypyridine and salts thereof | |
SU103777A1 (en) | Method for producing 2,4-diamino-5-isonitroso-6-hydroxypyrimidine | |
US1703145A (en) | Process of making 1-methyl-5-chlorobenzene-2-carboxamino-3-thioglycollic acid | |
KR820001123B1 (en) | Process for preparing n-susbstituted moranoline derivatives | |
JPS5928547B2 (en) | Process for producing 3-phenyl-viridazone-(6) |